Water heater



p 10, '1928. l v L. E. JOHNSON WATER HEATER Filed March 12. 1927 /Nl/ENTQR BY/m -' v`JFig; Sisvan` end elevational view ofthe ffTeEJS AVP-aentediApn 170, y Y y if LAWRENCE f Eff-JOHNSON, or MELRosE;MAssAorrUsETTs; YA's'seiv'c):af or .ONE-'HALE To 0 expensive construction,

` normal draft.' A Y -V .5' To the Vaccomplishment of this object andv 1 ofthe .smokeupipeof a Vfurnace"ort-he liker tov provide' ascontiuuation .of the passage` through the smoke pipe,combined with-fa for iconnectiongwith waterpipesgoutside of thegcasing.vv y

l The inventionLfurther consists in. other i 'Bo'sToNMAoHINEv/onns COMPANY, Y for MASSACHUSETTS..

WATER HEATER.

f Appncafionmea March 172, 1927 zjseriiu. meer 'I Thisinvention relatestoiwater heaters and more particularlyto "a'water Theater for application to the smoke` pipefor'v stack of household-heating apparatus forthe pur# asV a" pose of utilizing the Vhotfiue gases'y medium for heating the Water. f

. L l-One object of the inventionfis to provide .an ecientand reliable water heater ofthe-` ltype referred to, which is of durable but' in applied in the s taclrfor y smolreapipe of a heaterfand whichA will not interfere with vthe I such others as may hereinafter appear,y the invention 1n one aspecteomprlses a vvcasing 'adapted to be msencecliinr place of aas'ection waterf'conduit extendingthrough the inf teriorand through the Wall of said casing features'voflgonstruction and combinations be eXplaineduwith.reference l.' (5f the heater;

' showing the' preferred manner of "connect-` ingithewater.` vdistributing fcoils, through a of parts hereinafter.

thoseskilledin the art. f d The various'features ofthe' invention will tothe accompanying drawings, in which :r

" 1 Figure l is a 'bottom plan VVieWO 'a water heater constru'fteclv in, accordance with the present invention, a l cover constituting `the lower portion yof the. casing having been removed to reveal ,the interi or construction 1 Fig; 2`is a section con theline Q-Zof Fig. l, but showln'gthecover in" place heater onra smaller scale;

Figflfis a conventional one application of the heater to l'pipeof ya'household. heater; andy f` 'Fig'. 5Qis a fragmentary sectional View view illustrating the smoke header, to the house pipe line. ,Y

'Referring'first toAFig. 4 of thedrawmg'a a water heater `6 is' "shown as applied to' aV "smfokefpipe Zwhich connects the combustion chamber of a furnace V8 with a chimney,

which maybe easily described and claimed, the advantagesy of lwl'iichgwillloe obvious to ,uref heaters `im'ving, 'beet inserita in? piace of a previously or LYNN, MASSACHUSETTS; 'A' crearon'ArronH V'Ihevwater heater shownin Fig.` illand'in i detail in igs,'1 and2 comprises `anelon- Y leasingk isg apertured tof provide for. come` .lni'lnica'tionbetween th'einte'riorof the c'as-A l ing-.and` the v'sections ofthe. smoke pipe,1-th e` '-'apertuli'e' in Mthe end walll beingindicated -at `;20 in Fig.; 3. lThe aperture in the end wall l5,` although A not shovvn, i ssimilar to the aperturegZQ Bothytliecasing. l0 and .the cover 1 l arefmadel of heavy galvanized rlled! rim .21' andgfthe cover bengfnrevidd" with; narrow ilanges'-,which lit v.over this rim.'A The flanges at lthepends' ofl the cover i" so. .tend throughthe end walls'p'fthecasing and l .v `carry'win'g nuts 23 foridetachalolysecuringy 5 l thecover in place-"f ln TThe water c listributingf;,pipingl2 j feomvprisestwo 'headers 2-and1-251whie`h are verfI tically-disposedaadjaeent to'diagonally--opposite corners ofthe casinglO; The headers may conveniently be suspended from the top.

Vwall of the casing-"10.u 4Toithis end each Y.

header flangedi atits upper end',y as bestv 'shownfatlQG in vFig.,5 ,.andieachheader flange is securedin.placebyboltsprrivets 27 f which extend ythrough-a"v washerat the j outer 'side of-,the' easing; ,The headers. ter- Vminate'y-at ftheir; lower ends', just- ,short of.' `the `cover llV and-bothtthe. upper and lowerk t ends vofg-,the headers areloossed` and tapped t Yfor .connectionsfwith. inlet for `outlet pipes of the house hot water pipe line. The sides of the headers may-alsofbe bossed `and tappedat points adjacent toftheir upperand' lower extremitiesto*recei-veinlet or outlet,

pipes extendingrat'rightangles to'thefheadi: Y y i ers. The; header-' 24 is. illustrated as* so. 'hossed `and. tapped.` for thiswpu'rpos'elat V29v and.30,'hoth"ofthese openings loe-in'gclosed atapped o of the heac er Qllfwhi-le avertical hot water outlet pipe the .tapped L flue gases are free should the pipe coil becomev Inorderth'at the gases combustion passing betweenfthe pipe Icoils Athroughout' .all the ballleiplates' showngfthese vbaille"plates are `vertically disrijposedat opposite sidesof the bank o'r vseries `Each jballlefpl'ate is provided, for the illustrated length .of coil, with two. V, shaped portionstllV which project inwaf'rdlly screws 4A- to` three' vertical supporting :their outer in even spacedapart fre-lation.

f Vgases which r'lescribedf7 serve. Ialso to provid tween l the plates a'nd i Y of gases between` Y tions.

, Aifthe draftthrough thecasing become chokedV as, Vfor example, by 'accumu by suitable plugs when not used. As shown for purposes of explanation a plug 3l closes ening inthe eXtreme lower end 32 is screwed into openingrin the. flanged upp'en endfof the header' 24- The tapped settings yat; the/10P the sideV of the header 25 near its lower endyhas screwedtherein ahorizontal cold water inlet pipe 35;

Y Vtends outwardlythrough the" adjacent end wall of'thecasing 'and niaybeprovi'ded with aT Sti-for connection ice pipe 37 fand withga safety discharge The inlet pipe 351er with a supply orserv-` Valve '38 The headers 2411 and 25 are connected byta series-vof horizontal .distrib u ting` pipes or coils 40 each of which is bent back and forth `topro`duce,` `i n its simplest form,` the. sen

` I penti'ne shape shown in Fig. .1.- It will be Y observed that each distrib'utingfpipe 4() is composed of a plurality runs t1L and curved connecting portions 42 and 'that thecross runs are centralized widthare madesuflicienb. fly short tofprovidejfor*comparatively wide unobstructed passages of -parallel cross wiseof 'the casing 10and at opposite 'sides' .of the di'stributing pipesr 'elog`ged.' v andvlproducts- Qi 40shal1`act to heat the water'most eectively portions ofthe severalcoils, 13 andllLare provided-- As into the spaces between the crossfru'ns o coils-todeflect Athe'hot flue gases andbring them in effective hea-ting contactwithfall portions @of- 'the'A serpentine `distributing pipes 4 0.' Eaclrbaflle plate isfastenedlgyby ars The bars lly'are evenly notched `along faces to receive the-pipes ll0 of each coil 4and thus serve-not only `to vsupport thel baffle plates but also 5to hold the pipeslO V The lbaille plates 13 and 14,- infaddition to delecting the g passbetween them, as above e passages be" said sections, 4spacedbattle Vplates within the to provide atortuous'pas-- sa-id1 thefadjacent side walls of the casingV 1 0 for thefuninterrupted flow "the two smokepipel sec- Thisco'nstru'ation insures .thatieven lations off` soot or" foreign matterf upon the iwater distributing pipes' or withinthe'pasz Vsage between the.baflleplates,1 the gases willV neverthelessbe free to vHow sages valong the lthe Vcasing (viewing through =lwhich the to' pass uninterruptedly sage between them for the flue gases, plates beingalsospaced inwardly from the, walls of thecasing and constructed and aryl() should V ranged to'provide Van''nintierrupted:passage tively voffset lengthwise. of

the, baille plate 13 andthe left hand endof be made throughthe sides instead of the ends e ofthe casin ,fV (at the localitiesdesignated while still insuringithat the flue will pass betweenv the baille plates andfbe deflected therebyinto contact with all ofthecoils 40. l y The V above ydescribedQ'water heater :may

advantageously bei"employedv for heating i i "l water for the ordinary household usesand inasmuch as the :ordinarily wasteiilue. gases are utilizedas the medium for Vheating .the waterV considerablelexpense is saved; This water heater'niight also be usedrin thereturnVV ayhot water. -;l1`Qu s"eJ-` heating system to preheat the water before-it pipe y to ,thel boiler `of* is :returned into l the circulated water the boiler to raise it ture:v

,boiler so. that .fthe reto a desired, tempera- Althor'lglr the water heater A'rel ferredto herein as adapted-'for application l l 'to thefsmoke pipe of. afffurnacadt willibe 'understood' `that Ait 'niay be appliedgto'fthe smoke pipe leading from the combustion chamber 'of 'a steam', `hot"v vater,loil'or. gas

heater aswell as from 'thecombustionjchame ber of'a liot airheater.'V L.

-lVhile ithedetail's of constructionv of the illustratedV water Vheater with considerable particularity, tion is not limited to theserprecise 'or any i forth inthe following claims.;

VThe nature and scope having been indicated and bodinient having been: specifically what is claimed as new,y is :q-

described,

i l. A stack water heater comprising ra casing adaptedto be interposed between s ections of the smoke pipe of alieater, having inlet and outlet openings for connection with casing arranged adjacent said tortuous f-passage from one 'of said pipe. sections ito the other,y :and a water@ ,distributingcoil arranged withinV said t0r j.

through the pasouter sides V'of the baille plates. Y This construction: insures a 'perma- A:nent draft for the 'products of combustion.

The two baflle plates l13 and 14' are'rela.

4 Gesine 10, 0.1 shortened atoppositeends'yso thatja eoinand bottom of theheader 25 'are closed byfparatively wide space is` prcrvidedV between plugs 38fand 34 but a tapped openingiat; Y Y

Fig. 1) and a corre-y spondingly wide space isprovided between The baille plates are :constructed will require less 'heatingln y have -been "described 'the :inten-Y details i rof them exceptras 'they maybe set.

ofthe invention i its 4preferred .ein Y tuous passage `and having inlet and outlet yterminalsaccessible `from the exterior ofthe Vunitarysystem of Waterv distributing piping, a rectangular box-like housing for said piping adapted -to `connect tivo sections oi the smoke pipe, said housing having an the bottom to peiinit'said Water housing as a unit, a removable covery for'closing said v path of the flue f 3.,A vstack Water heater oon'iprising-anvr 20 v lbetween,sections of for lconnection With said bottom opening, Water inlet and outlet pipes connected With said distributing piping,

means for suspending'said piping from the topk wall oi the housing, and baile plates supported by said piping or directing'the gases through said housing'.

elongated casing adapted to .be interposed er .and having openings at permit a continuous flow. of flue gases `ends' securedvto the top through said casing, vertical headers at op-V pesite ends of the casing the smoke pipe of aheatits opposite'ends' pipe sections toh'aving their upper of the Casing, one

4 header vseries of Water distributing y p said headers, and a plurality ofbaiile plates v supported by said distributing pipes and p l'iaviirg a Cold, Water inlet'andfthef other vheader 'having la hot Water outlet, a

pipes connecting constructed andI arranged to provide a tor-fiv tu'ous passage shaped to deflect the flue gases alternately ing. U l .y

,i 4. A staolrzwater heater eomprisinga reotangularboX-like vcasing adapted to Connect tivofseetjions' of thes'mORe tivo headers Y suspended 'from dia'inetrioally opposite corner e l said casing andtadaptedffor connection With water inlet and outlet; pipes respectively, a series of horizontal' Water distributing pipes arranged one above another headers, said'f courses,`lthe vcross-runs of `said pipes being verticallyalined, verticall spacer bars carried by said series vof pipes, "and baillev plates secured to said spacer bars and having V- shaped 'deiiecting 'the spaoesbetvveen the distributing pipes. l y y t f LAWRENCE E. JOHNSON.'

toward opposit-esides of the `case lpipe of a heater,

.4,0 portions oit' they top Aivall'zof` connecting said pipes extending in serpentine i portions projecting into, 'the Valined. Cross `runs Vot 

